Saint Helens Weather in August

Saint Helens in August sees high temperatures, with highs around 28°C (82°F) and overnight lows of 13°C (55°F). With just 14 mm (0.6 in) of rainfall on average, rain is rarely an issue.

Rainfall in Saint Helens in August

You can expect rain on roughly 4 days based on historical data, averaging 14 mm (0.6 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Saint Helens in August

August is a good time to be in Saint Helens. Days are perfect, reaching 28°C (82°F), with nights around 13°C (55°F). August is a notable month of the summer season. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

Sunshine in Saint Helens in August

There are approximately 298 hours of sunshine this month, resulting in mostly clear days.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Saint Helens.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Saint Helens's climate page.

Saint Helens Temperature in August

Min Temperature 13°C (55°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 14%  

Precipitation 14 mm (0.6 in)  

Rainy days 4 days  

Humidity 65% *  

Sunshine 298 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (33 KM, 20 Miles).

What to Wear in Saint Helens in August

Warm but pleasant conditions in Saint Helens in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Saint Helens in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Saint Helens's climate page.

More climate data for Saint Helens

Temperature Rainfall Sunshine Humidity

See the full Saint Helens climate overview or explore weather in the United States of America.